Zenport TK631 Black Grafting Tape, 3/4-inch by 66-Feet Long for Grafting Fruit Trees and Vines. Wrap your vine and tree grafts to keep them tight to prevent drying. First wrap the vine or tree graft with electrical tape; then you have the option of carefully covering the union and binding material with grafting compound. Start wrapping on the stock and work up onto the scion. Remove wrapping as soon as the scion has started to grow to prevent girdling of the tree. Plasticized PVC rubber based adhesive. Tensile strength (N/cm) 26N/cm. Elongation at break 200-percent . Peel adhesion 1.8N/cm.